String tolower within a switch -glob

use "string tolower" is not match string case

ex. when HTTP_REQUEST { if { [active_members [LB::server pool]] < 1} { switch -glob [string tolower [HTTP::uri]] { "/" { HTTP::respond 200 content [ifile get cproxy_index.html] "Content-Type" "text/html" log local0. "URI: [HTTP::uri]" } "/503/img_logo.gif" { HTTP::respond 200 content [ifile get img_logo.gif] "Content-Type" "image/jpeg" log local0. "URI: [HTTP::uri]" } "/503/logo_nomuraUN170-16.gif" { HTTP::respond 200 content [ifile get logo_nomuraUN170-16.gif] "Content-Type" "image/jpeg" log local0. "URI1: [HTTP::uri]" } default { HTTP::respond 200 content [ifile get logo_nomuraUN170-16.gif] "Content-Type" "image/jpeg" log local0. "URI2: [HTTP::uri]" } } } } this case when uri="/503/logo_nomuraUN170-16.gif" is not match , default case "log local0. "URI2: [HTTP::uri]" output

whenever change switch -glob [string tolower [HTTP::uri]] ==>switch -glob [HTTP::uri]

then when uri="/503/logo_nomuraUN170-16.gif" is match "/503/logo_nomuraUN170-16.gif" and log local0. "URI: [HTTP::uri]" output

string tolower is not use.